Improvement in hand-supports



G. R. KNAPP.

HAND-SUPPORT.

N0.176,1Q. Patented Apri111,1876.

vfiyl% WITNESSES W I I Q ATTWS.

GEORGE E. KNAPP,

PATENT OFFICE.

OF VINTON, IOWA.

IMPROVEMENT IN HAND-SUPPORTS.

Specification forming part of Letters Patent No. 176,010, dated April11, 1876; application filed February 28, 1876.

To all whom it may concern:

Be it known that I, GEORGE It. KNAPP, of Vinton, in the county of Bentonand State of Iowa, have invented a new and Improved Hand-Support, ofwhich the following is a specification:

In the accompanying drawing, Figure 1 represents a top view of mybook-rest, partly in section, and Fig. 2 a vertical longitudinal sectionof the same on line 0 c, Fig. 1.

Similar letters of reference indicate corresponding parts.

My invention relates to an improved book rest, for the purpose ofsupporting the arm steadily in position when writing in lodgers,account, and other books of large size; and the invention consists of abook-rest, having shoulders of difl'erent sizes at both sides of thehand-rest and a sliding extension-rest for the arm.

In the drawing, A represents the blade,

which is made thicker at the butt and taper-- ing toward the point. Therest is inserted in the customary manner into the book, and providedwith offset or shoulders B at both sides for resting the hand, oneoffset being about three-fourths of an inch in thickness, the otherone-fourth of an inch. The double offsets admit the use of the rest withnearly equal advantage in every part of the book. The double offsetsbear also on the upper and lower edges of the leaves, and retain therebythe rest steadier in the book without allowing it to follow the motionof the arm.

The offsets B are arranged with an extension, O, that slides byguide-rods a in longitudinal perforations b of the ofi'sets B. Theextension 0 serves for giving a rest to the arm, and may be drawn out tothe required distance so that the bottom lines on a page may be writtenin the same steady handwriting, and with the same facility as upperlines.

The extension 0 is prevented from getting detached from the offsets B byan end collar, a, being stopped by the narrow part of the guideperforations, as shown in Fig. 1.

The improved book-rest furnishes thus a more convenient and bettersupport for the hand and arm, and admits'of the neat-er and easierkeeping up of account-books, &c., of all kinds.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. A book-rest, provided with shoulders or offsets ofdifferent height, at both sides of the blades, substantially as and forthe purpose set forth.

2. A book-rest, having a sliding extension for supporting the arm,substantially as and for the purpose described.

GEORGE B. KNAPP.

Witnesses:

H. E. WARNER, E. M. EVANS.

